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A063450 as a simple table

na(n)
12
23
34
46
58
69
710
812
914
1015
1116
1218
1320
1421
1522
1624
1725
1826
1927
2028
2130
2232
2333
2434
2536
2638
2740
2842
2944
3045
3146
3248
3350
3451
3552
3654
3756
3857
3958
4060
4162
4263
4364
4466
4568
4670
4772
4874
4975
5076
5178
5280
5381
5482
5584
5685
5786
5888
5990
6091
6192
6293
6394
6496
6598
6699
67100
68102
69104
70105

[2,3,4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,
 27,28,30,32,33,34,36,38,40,42,44,45,46,48,50,51,
 52,54,56,57,58,60,62,63,64,66,68,70,72,74,75,76,
 78,80,81,82,84,85,86,88,90,91,92,93,94,96,98,99,
 100,102,104,105]